lodash/isSet.js

import getTag from './_getTag.js';
import isObjectLike from './isObjectLike.js';

/** `Object#toString` result references. */
var setTag = '[object Set]';

/**
 * Checks if `value` is classified as a `Set` object.
 *
 * @static
 * @memberOf _
 * @since 4.3.0
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is correctly classified,
 *  else `false`.
 * @example
 *
 * _.isSet(new Set);
 * // => true
 *
 * _.isSet(new WeakSet);
 * // => false
 */
function isSet(value) {
  return isObjectLike(value) && getTag(value) == setTag;
}

export default isSet;